Price history & market evidence
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 8.0 | $306.66 | PANEL_PROFITS · grade_8_0_valueguide | 1954-06-01 |
| 9.2 | $399.00 | PANEL_PROFITS · grade_9_2_valueguide | 1954-06-01 |
| RAW | $52.00 | PANEL_PROFITS · ungraded_valueguide | 1954-06-01 |
| 3.5 | $320.00 | ComicBase · catalog referencecatalog | Date not recorded |
Reading this edition’s market
Compare the same cover, printing and grade before setting a bid. A raw guide or a higher-grade price does not establish a slab’s value. Include selling fees, shipping and the depth of completed-sale evidence when assessing an exit price.
The table includes 3 guide observations and 1 catalog references. These are reference values, not guaranteed sale proceeds.
Graded population
CGC records 19 graded copies for Mystery in Space #20 (1954). Population is the number recorded by this grading source, not the total print run or all surviving copies.
The Man In the Martian Mask
| Appearing1 = **Featured Characters:** * Ken Bennett **Supporting Characters:** * Martians) ** Dzrlu * Margaret * Bennett children **Other Characters:** * Mercurians * Venusians **Locations:** * United States of America * Mars (planet)) **Items:** * alien mask **Vehicles:** *
| StoryTitle2 = The Planet of No Return | Synopsis2 = | Appearing2 = **Featured Characters:** * Neil Gordon * Wilma Gordon **Supporting Characters:** * **Antagonists:** * **Other Characters:** * Har Klyn * Kor Wyn **Locations:** * Solar System ** Earth ** Neptune)
**Items:** * **Vehicles:** *
| StoryTitle3 = The Boomerang Meteors | Synopsis3 = | Appearing3 = **Featured Characters:** * Don Davis **Supporting Characters:** * Martha **Antagonists:** * Dorthians **Other Characters:** * **Locations:** * Solar System ** Earth *** Arizona
**Items:** * **Vehicles:** *
| StoryTitle4 = Insomnia Insurance, Inc. | Synopsis4 = | Appearing4 = **Featured Characters:** * Interplanetary Insurance, Inc. ** Bert Brandon) ** William J. Emory) **Supporting Characters:** * **Antagonists:** * **Other Characters:** * Lilo Lulu * Hehu **Locations:** * Capitol City * Venus) * Asteroid C-37M **Items:** * **Vehicles:** *
| Notes = * "The Boomerang Meteors" infers a part of the Earthlings are descendants of the aliens named Dorthians. | Trivia = | Recommended = | Links =
Creative credits
Writers: Sid Gerson
Interior art: Carmine Infantino, Gil Kane, Mort Drucker, Carmine Infantino
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:777740
GCD: 11345
PANEL PROFITS: 2413825